Machine tool



' March 5, 1940. D. H. MONTGOMERY :1- AL 2,192,198

MACHINE TOOL Filed April 22, 1937 19 She ets-Sheet 1 INVENTORS WNALDMMaNrEOMERY AR THUR H. JOEEA 7' h ,1940. D. H. MONTGOMERY Em 21 4 8 MACHINE TOOL Filed April 22, 1937' 19 Sheets-Sheet 2 ATTO R N EY$ March 5, 1940. D. H. MONTGOMERY ET AL 2,192,198

MACHINE TOOL Filed April 22, 1937 19 Sheets-Sheet 3 INVENTORS DONALD H. MONTGOMERY AR THUR H. JOIEkT ATTOR M March 5, 1940.

.0. H. MONTGOMERY El AL 2,192,198

momma TOOL Filed April 22. 19s? 19 Sheets-Sheet 4 S-ZIERSQHE 2.2 S S. 1111111111111!!! I I l w x INVENTOR DOA/4m H. MONTGQMg'R ARTHUR H. .laaser ATTORNEYS March 5, 1940. D. H. MONTGOMERY 1-:- AL ,1

MACHINE TOOL Filed April 22, 1937 19 Sheets-Sheet 5 INVENTOR 001mm hf nalvraoMsk Y ARTHUR H. dogma? ATTORN EYS March 5, 1940. D. H. MONTGOMERY Efr AL 2,192,198

' MACHINE TOOL 1 Filed April 22, 19s"! 19 Sheets- Sheet 6 ATTO NEYS March 5, 1940- D. H. MONTGOMERY'ET AL ,1

- MACHINE TOOL iled April 22, 1937 19 Shees-Sheet 'T INVENTORS MAMIF MMflA/TGOMEEY ARTI/(lk II. 10869 ATTORNEYS March 5, 1940.

D. H. MONTGOMERY ET AL 2,1

' MACHINE TOOL 19 Shedts-Sheet 8 Filed April 22. 19s"! wQO x Nam v. w w o E T N N R mu o HO T WUJ T M k A ww Y D. H. MONTGOMERY El AL 2,

MACHINE TOOL March 5, 1940.

Filed April 22, 19 37 19 Sheets-Sheet 9 INVENTORS 00/1410 II. MO/WZFMERY ARTHUR H. JOIERT ATTORNEYS March 5, 1940; D. H. MONTGOMERY ET AL 2,192,198

MACHINE TOOL I Filed April 22, 1957 19 Shets-Sheet 1o INVENTORS oamw MMfl/W'GOMEEY \q 4RTHORH.JOBERT ATTORNEYS March 5, 1940. D. H. MONTGOMERY ET AL 2,192,198

MACHINE TOOL l9 Sheets-Sheet 11 Filed April 22, 1937 MVN wlmw

H v Hm s I! RET Y qj whfl N6 R a o J M w IM.H A A". Y. 1 p mm www N\ J ww I! k F NH UH kw? A I] H III 3 m mus. I ME Q l1. wm *3 s3 NMN March 5, 1940.

D. H. MONTGOMERY ET AL MACHINE TOOL Filed April 22, 1937 19 Sheets-Sheet 12 QNN Nhw

s R s on w T N NM R M 0 VTB T NNo T I0J A BUY March 5, 1940. D. H. MONTGOMERY ET AL. 2,192

MACHINE TOOL Filed April 22,493? '19 Sheets-$heet 13 INVENTORS DOA/4L0 If. Mfl/VTGQMEEY ARTHUR H. JGOERT "March 5, 1940. I D. H. MONTGOMERY ET AL 2,192,

MACHINE TOOL Filed April 22. 1937 19 Sheets-Sheet 14 bmN INVENTORS MNIL H. M00760!!!" AfiI'Hl/RMJ08ERT ATTORNEYS March 5 1940.

D. H. MONTGOMERY ET AL MACHINE TOOL Filed April 22. 1937 19 Sheets-Sheet 15 m N Q Q N I H i Q llll-IIILUJ) 3 3 w ml] Hlllll I e Q Q&

NVENTCRS l MNJLDMMGNTGOMFQY ARTHUR Its/035R? ATTORNEYS March 5, 1940. D. H. MONTGOMERY ET AL 2,192,198

MACi-IINE TOOL Filed April 22, 1937 19 Sheets-Sheet 16 INVENTORS 00NALD H.MONT60MERY JRTHUR H.J08RT ATTORNEYS March 5, 1940. D. -1. MONTGOMERY El AL ,192,

MACHINE TOOL Filed April 22. 1957 19 Sheets-Sheet 17 INVENTORS' DONALD ll. MON7'60MERY ART'NIIE uaaser BY f MFTORN Y5 March 5, 1940. D. H. MONTGOMERY ET AL 2,192,193

' MACHINE TOOL V Filed April 22, 19:57 19 Sheets-Sheet 18 l M a ATTORNEYS Mrch 1940- D. H. MONTGOMERY ET AL 2,192,;198

MACHINE TOOL Filed April 22, 1957 19 Sheets-Sheet 19 INVENTORS 00 M MON T601 45 R 42mm? mvaaser ATTORNEYS Patented Mar. 5, 19.40

MACHINE r001.

Donald .H. Montgomery, West Hartford, and

Arthur 'H. J obert, New Britain, Conn, assignors to The New Britain Machine Company, New Britain, Conn., acorporation of Connecticut Application April- .22, 1937, Serial No. 138,282 46 Claims. (01. 29-37) Our invention relates to a machine tool and will be illustrated as embodied in a multiplespim dle' bar machine, Certain features of the invention are of importance only in connection with a '5 multiple spindle machine, while other features of the invention are of broader application and may be advantageously embodied in machines and types of machinesother than as herein specifically disclosed.- Y

It is the general object of the invention to provide'an improved form of machine of the character indicated, capable of turning out work pieces having great accuracy of dimension and with rapidity and in which the work and tools are readily accessible and may be easily observed.

It is a more specific object of the invention-to provide an open-end multiple spindle machine of the character-indicated, in which the work and tools may be clearly observed directly from the #2 0 front of the machine and adjustments readily made. 1 v

. Another object is to provide amachine of the character. indicated with'a plurality of tools so arranged as' to conserve space and permit a :greater number and variety of toolsjto be employed. than has heretofore been feasible 'without undue complication or enlargement of -the machine.

, Another object is to provide a machineof the character indicated with-improved means for simultaneously cutting off and back facing a work piece.

It is another object to providean improved means for taking end thrusts of thefworkcar- A further object is toprovide an improved work carrier assembly and means forsup'porting the same for easy and wear-free indexing.

It. is another object to provide improved means '40 for locating and locking the indexiblecarrier in indexed position.

It is another object to provide improved chucking means and means for preventing accidental unchucking in work stations.

Another object is to provide improved 'collet.

or chuck adjusting means and which is readily accessible for quick. adjustment.

-dles.

chine shown in Fig. 1 and illustrating the drive illustrating features of chuck mechanismshown ily appliedand removed without substantialdismantling operations. I w v A further object isto provide'improved means for stopping the machineor at least the feed works thereof upon a run-out of stock and after :5 completion of machining operations on the last piece.

It is another object to provide improved means for simultaneously, driving'a plurality of spin- Severalother objects and various features of invention will either be hereinafter pointed out or Will become apparent upon a study of the illus trated disclosure of the invention.

g *In the drawings which show, for, illustrative I15 purposes only, a preferred form of the invention as embodied in a multiple spindle indexing type of bar machine' 1 Fig. 1 is aside view in partial central section ofa complete machine, illustrating various fea- .20

tures of the invention;

Fig. 2 is a view in front end elevation of the machine shown in Fig. 1;

Fig. 3 is a view in rear elevation of the principal parts of the machine shown in Figs. 1 and 2, ,25

part of the frame being, shown in section and certain parts being omitted for-the sake of. illustration; p

Fig. 4 is a sectional view taken substantially in the plane of thelinerfl-4 of-Fig. 1; 130

Fig. 4? is an enlarged, fragmentary sectional view of a tool slide and associated parts;

Fig. 5 is a horizontal sectional view "of :the magearing; I

Fig. 6 is a more or less diagrammaticview of the drive .mechanism including that shown in Fig.5;

Fig. 7 is an enlarged View in vertical section, showing tool slides or'tool carriers for the. upper .40 and lower spindle positions at'theleft-hand side of Fig. 21and showingvarious other features in-- f eluding guiding and feeding mechanisms;

Fig. 8 is a vertical sectional view through the parts shown inFig. 7 and illustrating certain %45 features in connection with chucking mechanism fassociated with thespindle c arrier; It isanother object to.provide chuck, or collet Fig. 9 is an enlarged view in horizontal section,

in Figs. T'andti; w Fig. 9% is a, view in side elevation of toggle mechanism forhand chuck; actuation;

Fig. 10 i's a' view similar to Fig. 9 and is, in

' fact, a continuation of that .figure, illustrating otherv features in connectionywith toollactuation 

